什么时候该用这个 ssh_host_rsa_key？
用来恢复缺失的默认文件、确认发行版本带了什么，或拿你的 OpenSSH config 做 diff。
适用于
当前查看：
Ubuntu 24.04 LTS (Noble Numbat)
相同于：
其他版本：
详情
- 大小
- 38 行
- MD5
- 730965966b6b9b1798364f8bf6b61cae
- SHA256
- c65af94b17c5d3654a5b65d777925bd382e153bd7db8e984a4c014cae1146138
/etc/ssh/ssh_host_rsa_key
-----BEGIN OPENSSH PRIVATE KEY----- b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAABlwAAAAdzc2gtcn NhAAAAAwEAAQAAAYEAoDq16vsuKiBUl/hHgmWYVnDqrwVYIOKNUPJjOzGt6GCtXnJ/6M1R U0OGrBcxVYN/IXcn6S6UMKRVbiFbO+XI0KAbY6BW2fnHGpfv0tVq4HLWEZLgtdoYWEbJgL i0tEiEH9XVChutNj/KpOaYsyN3l1fHJn9Jrfq6EqBIVGu8GDGCnebMy2rIDWUaX/N5MDRJ 6Gh+yAfD5+A4Bu80w7at30Pkiv851FKnzTvcLMVNFJVHynoL0P/RXXzY0v4d/XlhTXUG5d d+uZAlP6GnzDxWdrsYigqFdNuNsfVINhKxdb3fanZ2Dyf2s3pPS9PgiDhStyvRcGvQW6pb wFsuzbBy2Krk3gpL9roIOvfbKqByTlgiekqPtpE1YObMER2mreWIp0LvPjnE4kqcLsfplO D9TFyTF6gc7lKXixDfQ4GpFLE2xdPVV0Pjat8XK+t7SWTYUikgWKaj7ApQZHClm65gJ5H5 CfakC6JhAmOoblgtKex2iBVxft1zsgl6+y+d/yFLAAAFiEWGL0NFhi9DAAAAB3NzaC1yc2 EAAAGBAKA6ter7LiogVJf4R4JlmFZw6q8FWCDijVDyYzsxrehgrV5yf+jNUVNDhqwXMVWD fyF3J+kulDCkVW4hWzvlyNCgG2OgVtn5xxqX79LVauBy1hGS4LXaGFhGyYC4tLRIhB/V1Q obrTY/yqTmmLMjd5dXxyZ/Sa36uhKgSFRrvBgxgp3mzMtqyA1lGl/zeTA0SehofsgHw+fg OAbvNMO2rd9D5Ir/OdRSp8073CzFTRSVR8p6C9D/0V182NL+Hf15YU11BuXXfrmQJT+hp8 w8Vna7GIoKhXTbjbH1SDYSsXW932p2dg8n9rN6T0vT4Ig4Urcr0XBr0FuqW8BbLs2wctiq 5N4KS/a6CDr32yqgck5YInpKj7aRNWDmzBEdpq3liKdC7z45xOJKnC7H6ZTg/UxckxeoHO 5Sl4sQ30OBqRSxNsXT1VdD42rfFyvre0lk2FIpIFimo+wKUGRwpZuuYCeR+Qn2pAuiYQJj qG5YLSnsdogVcX7dc7IJevsvnf8hSwAAAAMBAAEAAAGADKl3FNGyrTuO08+X/xL+Pd6AfU JD251ro3j0JIphftqc+Li9qO0Ivza33sOab3KLyl47Ni8rIMjrw185cXtQKkRsxau3EVSu ykg1eIjLAF+y0QK1ZUmN4PP/Gn/+L70HS+i/BCR5xK632d4rNQTZf4k9QKqQbQJCUBSAgs NcwuCuvMGvb2fJ1V0m/2wjKI8JRCd11WLftWQ/qTSgC9NU3C7mUaGntUKu5gYT+SnCVJ0T ZknMw0BkECo8jDfusMg1qzBZ/dCVjdDpP0L1qo0OfKz8y/rYj3X67cdY42KDDQYiQXf1T+ cbS9m5wK0FaGtlCs5hA2U6Q/qW4HNYVYFAXcMMvHAxKTaZr7918k0rBwx+UvWrrBPmDT5F m4PdOwq1bLd2IgXu2xoUuaL9trELWX8ECYJw8vvgYd/xRrzXbsAY14G1BFSaWAmCazDSHJ cjBQG86uhGuu+PQOpk7/m3wwnMnv3xTPNvQjozijMcEww9lVsCSHTxqDCQD+3qgNeRAAAA wQC94w+lpqQayFNE2oI9NT1Ek5JedTyDMng2ef4tezY8ydJUnnTXgkJoLozEJXHytjRpPs nH486NSG9vgFp7rru0vCv1EFtaLAagd5JkUoSAsH8geUi0MYAwrv8nHnKSLK1NiJwpmpBo z5fbH93cvBglegruC+LEApbxaw6yNA0PC2ee0FZSvzRDPsYO5jH9fx3KYNj47Ajq521SLI 1HuiBXtJ6TO2LRy+3jJ5oCHvJ/R/3/CNVp5hWzStPxbfLlvhwAAADBANgpaeXu4eDerlHh muJZuldHyIlX2wNEctcpIPj3g8s+nd79+TWDNQ0BhFgM/4qi/09uwYXY5w3yGTsXlKVesk FUWlfteFz3Mt76wT1aYWjwACMW0Ctl+mQd0+0kul1kANJhFGz7K/Glh4QFvrtFqF6TK9is BGSLvqGag2rJGqwFbPtqYdf6OHsjg16xcFcgIZvwkTU/AtJ2Eswcp23nsUD7MkXLt2DhbE fW1ztpGx1XZf6r3u2SmxNkv0AKA1sxwwAAAMEAvcJitoaGSVJ0y29u3AJK+KxuQXgptjjr tcKt2dSFVDtf0Nw/wtXhYv+PRRneTK6DMcoFmLSKb7wsBxtTugLeJl55i42yKmf8PmwJxl 3GvWRPQB5QScsuRt19g6Vynxpx9los/wOIuaHHBp05vofnUKEj/qb0PDqlBbhwkt61SAVT q++HqbfD6qYNdvV3xZIwv5NEhBTAoEM2/08bRmjT76gLYs+2AJP2xaYvvU6OdSlTFwz1NS SU2BIcPoiwzBHZAAAAEXJvb3RAZDkyMTc0OTkwYjZjAQ== -----END OPENSSH PRIVATE KEY-----
复制粘贴
curl：
curl https://exampleconfig.com/api/v1/config/original/730965966b6b9b1798364f8bf6b61cae?hint=ssh_host_rsa_key
wget：
wget -O ssh_host_rsa_key https://exampleconfig.com/api/v1/config/original/730965966b6b9b1798364f8bf6b61cae?hint=ssh_host_rsa_key
给 AI Agent 用
<prompt><role>DevOps agent</role><source url='https://exampleconfig.com/api/v1/config/original/730965966b6b9b1798364f8bf6b61cae?hint=ssh_host_rsa_key' /><config><app>OpenSSH</app><os>Ubuntu 24.04 LTS (Noble Numbat)</os><location>/etc/ssh/ssh_host_rsa_key</location><lines>38</lines><md5>730965966b6b9b1798364f8bf6b61cae</md5><sha256>c65af94b17c5d3654a5b65d777925bd382e153bd7db8e984a4c014cae1146138</sha256></config></prompt>
粘贴到 Claude、ChatGPT 或任何 AI 助手里。
安装 OpenSSH
Alpine Linux
sudo apk add openssh-server
Debian
sudo apt update && sudo apt install openssh-server
Red Hat Enterprise Linux
sudo yum install openssh-server
Ubuntu
sudo apt update && sudo apt install openssh-server
文件位置
FAQ
怎么恢复 OpenSSH 的默认配置？
下载文件，把 /etc/ssh/ssh_host_rsa_key 里的当前配置备份好，替换掉，然后 reload 或 restart OpenSSH。
ssh_host_rsa_key 适合直接上生产吗？
这是 Ubuntu 24.04 LTS (Noble Numbat) 的厂商默认配置，只能当基线。上生产前请检查安全和性能设置。
和其他 OS 版本有什么不同？
默认值会随发行版和版本变化，这份对应 Ubuntu 24.04 LTS (Noble Numbat)。
我可以用它来排查 OpenSSH 吗？
可以。和你的配置做 diff 找出漂移，然后只恢复需要的段落。
